CN203176474U - Flow-limiting valve for exploded pipe - Google Patents
Flow-limiting valve for exploded pipe Download PDFInfo
- Publication number
- CN203176474U CN203176474U CN 201220735806 CN201220735806U CN203176474U CN 203176474 U CN203176474 U CN 203176474U CN 201220735806 CN201220735806 CN 201220735806 CN 201220735806 U CN201220735806 U CN 201220735806U CN 203176474 U CN203176474 U CN 203176474U
- Authority
- CN
- China
- Prior art keywords
- slide bar
- valve
- slide block
- flow
- current limliting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model belongs to a control device on a medium pipeline, and particularly relates to a flow-limiting valve for an exploded pipe. Once a pipe-explosion accident occurs on the pipeline, the flow-limiting valve for the exploded pipe can effectively control the flow speed of the medium inside the pipeline. The flow-limiting valve for the exploded pipe comprises a valve body, wherein medium rubber pipes are arranged at the two ends of the valve body, a valve body shell body is provided with an installation hole, and a valve deck is arranged outside the installation hole and is sealed with the valve body. The flow-limiting valve for the exploded pipe further comprises a flow guide body, a flow limiting body, a supporting moving structure, a sliding block and a sliding rod which are arranged inside the valve body, and further comprises a damping element capable of sliding in a sliding block mode and a pulled trigger structure capable of sliding in a sliding block mode which are arranged outside the valve body. The flow-limiting valve for the exploded pipe is reasonable and simple in structure, flexible in movement, and particularly suitable for limiting the flow of the exploded pipe of a large pipeline in an area without electricity.
Description
Technical field
The utility model belongs to the control gear on the medium pipeline, is specifically related to a kind ofly behind pipeline generation pipe explosion accident, can effectively control the booster flow-limiting valve of velocity of medium in the pipeline.
Background technique
Long apart from the medium output pipeline, such as large-scale water supply line, water supply line lays along the long distance of geography.The valve opening and closing of all employing routines of existing pipeline control design etc. is arranged control valve.Occur pipeline breaking on pipeline, during accidents such as booster, ducted medium can be rapidly from breaking, and the booster place sprays, thereby causes pipe waterflooding accident; The rapid change of ducted pressure simultaneously can produce greatly in pipeline and impact, and for aqueduct, then can produce impact of water hammer, influences the safety of pipeline miscellaneous part.How to address the above problem, namely after on the large-scale water supply line booster taking place, can realize that the pressure in the water supply line changes slowly, even can automatically large-scale water supply line be closed, all are urgent problems for valve manufacturing, user, particularly in the area that does not have power supply, how to address the above problem, all use less than relevant technology in the prior art.
Summary of the invention
It is a kind of when the pipeline medium transport that the purpose of this utility model is to provide, and after booster takes place, can realize that pressure medium slowly discharges in the pipeline, even close the booster flow-limiting valve of pipeline, thereby address the above problem.
The technological scheme of the utility model booster flow-limiting valve is: it comprises that two ends offer the valve body of MEDIA FLOW siphunculus, and the valve body housing is provided with mounting hole, and mounting hole is provided with valve gap and valve seal outward, and it also comprises:
Establish in the valve body:
Deflector, described deflector are arranged in face of the media flow direction in the cavity of valve body housing formation, form the water conservancy diversion runner between the guide face of described deflector and valve body inner walls, valve gap inwall;
The current limliting body, described current limliting body and described deflector be opposing to be connected setting, forms flow-restricting flowpath between described current limliting body current limliting face and described valve body inner walls, valve gap inwall;
Support moving structure, described deflector and described current limliting body are supported on and support between the moving structure;
Slide block is connected with described current limliting body with described deflector;
Slide bar is connected with described slide block;
It comprises that also to be located at valve body outer:
The damping device that slide block moves is connected with an end of described slide bar;
The tension that slide block moves triggers structure, and described tension triggers structure and is connected with the other end of described slide bar.
In the technical program: the deflector of setting guarantees when pipeline normally moves in the valve body, during medium process booster flow-limiting valve, deflector bears the normal pressure of medium on the one hand, on the other hand, it and valve body inner walls, valve cover chamber form the linear loss that the water conservancy diversion runner reduces pressure medium to greatest extent; After pipe explosion accident took place, deflector bears medium acutely increased pressure simultaneously.
Form flow-restricting flowpath between the current limliting body of setting in the valve body and valve body inner walls, valve gap inwall; When normal medium transport, the linear loss that flow-restricting flowpath reduces pressure medium to greatest extent guarantees the normal conveying of medium; After pipe explosion accident takes place, the movement of current limliting body, making current limliting body and valve body inner walls, valve cover chamber form flow-restricting flowpath narrows down little, mobile formation damping function to medium, the outer vent flow of less medium, the moving process of current limliting body is realized the slow variation of pressure medium, thereby behind the solution booster, the acute variation of pipeline internal medium pressure, realize throttling, prevent the impact of the acute variation of booster pressure medium, for aqueduct, the water hammer that solves in the pipeline has problems, and avoids the generation of booster water hammer accident.
Support moving structure and realize deflector and the support of current limliting body in valve cavity, realize that simultaneously deflector and the straight line of current limliting body in valve cavity move.
Slide block can be gone out the pressure transmission of medium, can move with the straight line of deflector and current limliting body simultaneously and mobile.
Slide bar is used for transmitting the pressure of medium.
The effect of the damping device that slide block moves is behind the pressure of the transmission medium that affords slide bar, and slide bar and slide block are implemented reaction force, hinders the movement of slide block, namely hinders the movement of deflector and current limliting body, reduces the great change of pressure medium.
The tension that slide block moves triggers structure and guarantees to be used in after the generation booster, and slide block and the deflector and the current limliting body that are connected with slide block could move; When pipeline normally moved, the tension that slide block moves triggered structure the normal pressure of medium that deflector bears is implemented reaction force, avoids deflector and current limliting body to move when pipeline normally moves.The tension that slide block moves triggers structure can adopt power free mechanical structure;
Also can adopt the sensor detection architecture of power supply, detect pulling force as adopting pulling force sensor, after pulling force is greater than setting threshold, cut off the constraint of slide bar.
Deflector and current limliting shape are similar to bullet shape, the resistance when being conducive to reduce media flow.
The further structure of optimizing: deflector is identical with the shape of current limliting body.Identical shaped arranging on the one hand can cut down finished cost, and is convenient to simultaneously install, and do not have the reverse problem of installing.
Deflector in the utility model and current limliting body are in the unidirectional function of playing when preventing booster separately;
Also can when preventing booster, play effect two-way, namely when the pipeline booster of the rear end of booster flow-limiting valve, deflector plays water conservancy diversion carrying effect, and the current limliting body plays mobile metering function; When the pipeline booster of the front end of booster flow-limiting valve, deflector plays mobile metering function, and the current limliting body plays water conservancy diversion carrying effect.
The realization of above-mentioned functions can realize by the same shape of deflector and current limliting body.
The further structure of optimizing, described valve body housing is provided with guide cylinder, and described slide bar passes guide cylinder, is provided with seal arrangement between slide bar and the guide cylinder.This structure has solved the mobile guide problem of slide bar, has solved the sealing problem of slide bar in passing the valve body process simultaneously.The installation that the structure of valve gap, front valve shell and rear valve body is conducive to the valve inner structure is connected.
The further structure of optimizing, described support moving structure comprises the supporting track that is fixed in the valve body, be arranged at the moving member on the supporting track, described moving member is connected with described current limliting body with described deflector, supports moving structure and is provided with the stroke limit structure.Limit structure make pipeline by booster flow-limiting valve limited flow rate to setting flow.
Described moving member can have multiple structure, such as the single slide block structure that is connected with track of employing, or the vehicle structure of band roller etc.Supporting moving structure can arrange one or more according to the size of caliber carrying.
The further structure of optimizing, described slide bar comprises first slide bar and second slide bar, described slide block offers first attachment hole and second attachment hole; First slide bar passes first attachment hole and spacing connection of slide block one end face, and second slide bar passes second attachment hole and is connected with the slide block other end is spacing.
Said structure solves the problem of transmission that is connected power of slide bar and slide block, and simultaneously, also when realizing two-way booster current limliting, deflector and current limliting body effect exchange provide architecture basics.
The further structure of optimizing, the other end of described first slide bar trigger structure with first tension that slide block moves and are connected, and described first tension triggers the other end of structure and fixes; The other end of described second slide bar is connected with second damping device that slide block moves.
The further structure of optimizing, described first tension trigger structure comprise is connected with the slide bar end be subjected to the pulling force piece that ruptures, fixed by the other end of pulling force fracture piece, the described radial cross section area that is subjected to pulling force fracture piece is less than slide bar end radial cross section area, describedly is subjected to be arranged with pressure-bearing on the pulling force fracture piece and strengthens sleeve.
This mechanical type triggers structure, its essence is the weak section that connects a pulling force carrying at slide bar, after pressure medium is greater than the pulling force limit that can bear by pulling force fracture piece, ruptured by pulling force fracture piece, excites deflector and current limliting body to move.It can bear materials with smaller and/or the less cross section that bears is realized by employing, realizes the weak section of pulling force carrying by the variation of structure, is convenient to and being connected of slide bar end.Pressure-bearing is strengthened the bearing capacity that sleeve can increase the weak section of pulling force carrying, when having two-way booster current-limiting function, guarantees that pressure-bearing herein transmits damping.
The further structure of optimizing, described first slide bar comprise and the guide section of the slip of the first attachment hole Spielpassung of slide block that slide block moves spacing section, and slide block moves between spacing section and the guide section has limited step; Described second slide bar comprises and the guide section of the slip of the second attachment hole Spielpassung of slide block that slide block moves spacing section; Slide block moves between spacing section and the guide section has limited step.This structure booster takes place after, slide block can be under the effect that does not have damping fast moving one segment distance, the current limliting body is under the pressure medium that deflector bears, fast moving reduces the Flow area of flow-restricting flowpath, realizes an end quick throttle, reduces the outer vent flow of medium.It is simple in structure, and is easy to connect.
The further structure of optimizing, it also comprises support, and described support one end is connected with deflector, and the other end of described support is connected with the current limliting body, and described support is connected with slide block.Support is arranged between deflector and the current limliting body, and deflector and current limliting body are connected into whole assembly, is conducive to reduce the pressure loss to pipeline medium simultaneously.
The further structure of optimizing, the described two ends of pulling force fracture piece that are subjected to are connected with flange respectively.
The further structure of optimizing, the described two ends of pulling force fracture piece that are subjected to are provided with the connection boss; Describedly be connected in the end of slide bar by a part of clamping of pulling force fracture piece, the end that described another part that is subjected to pulling force fracture piece stretches out slide bar is fixed.
Booster flow-limiting valve working principle is as follows:
1, when pipeline normally moved, system flow rate was little, and liquid is less to the thrust that flow direction acts on deflector, the tensile strength that the tension that this moment, slide block moved triggers structure is enough, hold the mediate position of damage by water coefficient minimum of deflector, this moment, the valve resistance was little, reduced system's damage by water;
2, when behind the valve during somewhere pipeline section generation booster, the pipeline flow velocity improves rapidly, the thrust that liquid acts on deflector raises greatly, it is not enough far away that the tension that slide block moves triggers structure tensile strength, and pulling force component is broken, and deflector advances at hydraulic action lower edge support moving structure, and (guide rail and support unit adopt roller structure, resistance is very little), the current limliting body is mobile thereupon, reduces the sectional area of flow-restricting flowpath, reduces the outer vent flow of medium; Damping device can be to the mobile generation damping of deflector and current limliting body in this process;
When 3, deflector advances to the position of setting the stroke limit unit, halt, this moment pipeline by booster flow-limiting valve limited flow rate to setting flow;
4, when the attendant finds pipe explosion accident, close the service valve of installing before the booster flow-limiting valve, the hydraulic damping of manually-operable simultaneously device, deflector is pushed into the valve neutral position, change the tension triggering structure (all pulling force component mechanical property deviations are less than 1%) that slide block moves simultaneously, valve reset;
When before the valve during booster, working principle is identical with 3,4, and just direction becomes and comes.
Booster flow-limiting valve main technical points is:
Whole valve body and deflector structure are dolphin shape streamlined structure, and hydraulic loss is very little;
The tension triggering structural mechanics unit that the induction booster is carried out current limliting pass valve is the pulling force fragmentation cell, and there is not unexpected factor in the reliability height;
The tension that the action of valve booster current limliting is moved from the booster slide block triggers structural break and closes slowly to unrestricted motion to current limliting quick closing valve to current limliting, and multistage motion is closed, and effectively limits the booster flow velocity and eliminates pass valve water hammer simultaneously;
Valve motion relies on the waterpower self-characteristic fully, does not have any external force and drives, and is used for that large-scale pipeline is open-air to be installed, and is low according to patience to environment, condition;
The aperture that valve closes after putting in place is adjustable, even can close fully.
Valve can have the beidirectional characteristics, no matter be that booster all can carry out effective current limliting to pipeline behind the preceding booster of valve or the valve.
This valve mechanism arranges rationally simple, and flexible movements are specially adapted to the booster current limliting of the large-scale waterpipe in non-transformer area.
Description of drawings
Fig. 1 booster flow-limiting valve structure master looks schematic representation.
Fig. 2 slide block and slide bar connection diagram.
The tension that Fig. 3 slide block moves triggers structure I schematic representation.
The tension that Fig. 4 slide block moves triggers structure II schematic representation.
Embodiment
The utility model is based on booster take place after, stop pipeline internal medium pressure, flow sharply to change, pressure medium, flow slowly change and propose in the control pipeline.Multiple embodiment is arranged under technical solutions of the utility model; the following example is only with the concrete enforcement structure of explanation the utility model; protection domain of the present utility model is not limited to following concrete enforcement structure, and those skilled in the art implements to be different from the structure of following concrete enforcement structure also within protection domain of the present utility model in the disclosed technological scheme of the utility model.
As shown in Figure 1, valve body comprises front valve shell 101 and rear valve body 102, is connected sealing by the flange arrangement 103 that arranges on front valve shell 101 and the rear valve body 102 between front valve shell 101 and the rear valve body 102.Front valve shell 101 comprises that front end facility medium (water) enters run 104, and rear valve body 102 comprises that rearward end facility medium (water) flows out run 105.The rear end of front valve shell 101 with and the leading portion of rear valve body 102 constitute the installation cavity 106 of valve body inner structure.
The valve body housing is provided with mounting hole 113, the mounting hole 113 outer valve gaps 109 that are provided with, and valve gap 109 is tightly connected by bolt 112 with valve body.This knot enough makes things convenient for the installation of valve inner part.
Install in the cavity 106 and be provided with the support moving structure, according to caliber, cavity 106 top and the bottom are being installed in suffered carrying in the present embodiment, about portion (Fig. 1) be equipped with and support moving structure and constitute stable mobile the support.Also can be according to caliber, suffered being carried on installed 106 of cavitys and one or two or three are set are supported moving structures.
Support moving structure and comprise the supporting track 201 that is fixed in the valve body, be arranged at the moving member 202 on the supporting track.Moving member 202 can adopt and supporting track 201 slide blocks, also can adopt down bassinet structure.Adopt bassinet structure down in the present embodiment, following bassinet structure comprises connection dunnage 203, connects on the dunnage 203 to be connected with roller 204, and this structure connection is supported more stable, and moving resistance is little simultaneously.The stroke limit structure can be provided with between supporting track 201 and the moving member 202, structure (not shown) such as limiting stopper, block can be adopted.
Install in the cavity 106 and establish deflector 301, the shape of deflector is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape that constitutes of Rotary-table.
The shape of deflector 301 is by the tangent solid of rotation shape that forms of a plurality of arc sections, as sub warhead in the present embodiment.
The fluid 302 of limiting in the cavity 106 is installed, and the shape of current limliting body is the ellipsoidal shape of a part; Or by the tangent solid of rotation shape that forms of a plurality of arc sections; Or by the tangent solid of rotation that forms of a plurality of arc sections, the shape of the end of solid of rotation and cylindrical body or the tangent formation of Rotary-table; Or ball-crown body shape; Or by ball-crown body and cylindrical body or the tangent shape that constitutes of Rotary-table.
The shape of current limliting body 302 is by the tangent solid of rotation shape that forms of a plurality of arc sections, as sub warhead in the present embodiment.
The setting of supporting or opposing of deflector 301 and current limliting body 302; Support 303 is located between deflector 301 and the current limliting body 302; Support 303 front ends are connected with deflector 301, and the rear end of support 303 is connected with current limliting body 302.
Form flow-restricting flowpath 111 between current limliting body 302 current limliting faces and described valve body inner walls, valve gap 109 inwalls.
Be provided with deflector between valve interior wall and deflector and/or the current limliting body, the current limliting body moves limit structure, for be provided with deflector between the structure valve interior wall of two-way booster current limliting and deflector and the current limliting body, the current limliting body moves limit structure; Move limit structure for being provided with the current limliting body between the structure valve interior wall of unidirectional booster current limliting and the current limliting body.Mobile limit structure can be limiting stopper.
Be provided with guide cylinder 107, guide cylinder 108 with front valve shell 101 and the rear valve body 102 of slide block 304 relative positions; First slide bar 401 passes guide cylinder 107 and sealing with it.Sealing configuration can adopt between the surface of contact of first slide bar 401 and guide cylinder 107 seal ring is set.Second slide bar 402 passes guide cylinder 108 and sealing with it.Sealing configuration can adopt between the surface of contact of second slide bar 402 and guide cylinder 108 seal ring is set.
The structure that all needs to implement the booster current limliting for booster flow-limiting valve front end, rear end:
The outer end of first slide bar 401 is connected with the tension triggering structure 501 that slide block moves, and the other end that tension triggers structure 501 is connected with the damping device 601 that slide block moves; Second slide bar, 402 outer ends are connected with the tension triggering structure 502 that slide block moves, and the other end that tension triggers structure 501 is connected with the damping device 602 that slide block moves.Tension triggers structure 501,502; The damping device 601 that slide block moves, 602 not shown in the diagram.
Damping device is realized the mobile slowly of slide bar, can adopt damping oil cylinder, and damping oil cylinder is simple in structure, is convenient to arrange at valve body; The damping oil cylinder that preferably has multistage damping function is as ZL2010101502736 valve slow opening Slow Close damping device.
For the structure of only requiring booster flow-limiting valve rear end enforcement booster current limliting, only need be connected with the tension triggering structure 501 that slide block moves in the outer end of first slide bar 401, tension triggers the other end of structure 501 and fixes; Second slide bar, 402 outer ends are connected with the damping device 602 that slide block moves and get final product (diagram is not arranged).Simultaneously, first slide bar 401 and second slide bar 402 can be whole rod members.
The linkage structure of slide block 304 and first slide bar 401, second slide bar 402 is as shown in Figure 2: slide block 304 offers first attachment hole 405 and second attachment hole 406; First slide bar 401 passes first attachment hole 405 and spacing connection of slide block one end face, and the end that first slide bar 401 passes first attachment hole 405 in the present embodiment is connected with spacing linkage structure 407; Spacing linkage structure 407 can be the limiting stopper that is connected with first slide bar 401 or the spacing locking nut that is connected with first slide bar 401.The structure of first slide bar 401 comprises and the guide section 403 of the slip of the first attachment hole Spielpassung of slide block that slide block moves spacing section 404, and slide block moves between spacing section and the guide section has limited step 412.When this structure can realize that tension triggers structure 502 fracture triggerings, slide block 304 moved quickly into limited step 412 places under the effect that does not have damping, and its rear slider 304 is slowly mobile under the effect of damping device 601 again.The effect of spacing linkage structure 407 is when other direction needs the booster current limliting, and 304 pairs of spacing linkage structures 407 of slide block are implemented pulling force, and the pressure of water is delivered to first slide bar 401, and first slide bar 401 is applied pulling force.
For the valve that only needs unidirectional booster current limliting, the slide bar that tension can be triggered structure side is fixedlyed connected with slide block.
Tension triggers structure as shown in Figure 3, comprise is connected with the slide bar end be subjected to pulling force fracture piece 510, fixed by the rupture the other end of piece 510 of pulling force.Be subjected to the radial cross section area of pulling force fracture piece less than slide bar end radial cross section area.
Be subjected to be arranged with pressure-bearing on the pulling force fracture piece and strengthen sleeve 514.
Be subjected to pulling force fracture piece for the structure of two-way booster current limliting, it is identical with the structure of tension triggering structure 502 that tension triggers structure 501, is illustrated with the linkage structure of first slide bar 401:
Be subjected to pulling force fracture piece 510 1 end adpting flanges 511 for the structure of two-way booster current limliting, flange 511 is connected with flange 512 on first slide bar 401.Be subjected to the other end adpting flange 513 of pulling force fracture piece 510, flange 513 is connected (being connected with the piston rod 603 of damping oil cylinder) with damping device 601.This structure is convenient to connect and is changed.Be subjected to the radial cross section area of pulling force fracture piece 510 less than first slide bar, 401 end radial cross section areas.
Be subjected to sheathed pressure-bearing reinforcement sleeve 514 on the pulling force fracture piece 510.
As shown in Figure 4, be subjected to another kind of structure and the connection of pulling force fracture piece, second kind of structure comprised by pulling force fracture piece to break part 521, the two ends of breaking part 521 are provided with and connect boss 522 and 523, the end of first slide bar 401 offers draw-in groove 413, draw-in groove 413 comprise the linkage section 414 that cooperates with the boss 522 that is subjected to pulling force fracture piece and be subjected to the rupture guide section 415 that part 521 cooperates of breaking of piece of pulling force.Break part 521 and stretch out guide section 415, another section that is subjected to another boss 523 of pulling force fracture piece and breaks part 521 is connected with stationary axle 420.Offer in the axle head of stationary axle 420 second draw-in groove, 421, the second draw-in grooves 421 comprise the linkage section 422 that cooperates with the boss 523 that is subjected to pulling force fracture piece and be subjected to the rupture guide section 423 that part 521 cooperates of breaking of piece of pulling force.The end face of stationary axle 420 contacts with the end face of first slide bar 401.Be fixed for unidirectional booster flow restriction stationary axle 420, connect into integral body as the housing with valve body.For the structure of two-way booster current limliting, stationary axle 420 section of being transition coupling shafts, the other end of stationary axle 420 is connected with damping device.Second slide bar 402 is subjected to pulling force fracture piece linkage structure identical with said structure with second kind of structure.
For needing current limliting until the valve body structure of closing, the valve seat of setting and deflector and/or current limliting body fitted seal in valve body.
The content that this specification is not described in detail belongs to related domain professional and technical personnel's known prior art.
Claims (10)
1. booster flow-limiting valve, it comprises that two ends offer the valve body of MEDIA FLOW siphunculus, it is characterized in that the valve body housing is provided with mounting hole, and mounting hole is provided with valve gap and valve seal outward, and it also comprises:
Establish in the valve body:
Deflector, described deflector are arranged in face of the media flow direction in the cavity of valve body housing formation, form the water conservancy diversion runner between the guide face of described deflector and valve body inner walls, valve gap inwall;
The current limliting body, described current limliting body and described deflector be opposing to be connected setting, forms flow-restricting flowpath between described current limliting body current limliting face and described valve body inner walls, valve gap inwall;
Support moving structure, described deflector and described current limliting body are supported on and support between the moving structure;
Slide block is connected with described current limliting body with described deflector;
Slide bar is connected with described slide block;
It comprises that also to be located at valve body outer:
The damping device that slide block moves is connected with an end of described slide bar;
The tension that slide block moves triggers structure, and described tension triggers structure and is connected with the other end of described slide bar.
2. booster flow-limiting valve according to claim 1 is characterized in that described valve body housing is provided with guide cylinder, and described slide bar passes guide cylinder, is provided with seal arrangement between slide bar and the guide cylinder.
3. booster flow-limiting valve according to claim 1, it is characterized in that described support moving structure comprises the supporting track that is fixed in the valve body, be arranged at the moving member on the supporting track, described moving member is connected with described current limliting body with described deflector, supports moving structure and is provided with the stroke limit structure.
4. booster flow-limiting valve as claimed in claim 1 or 2 is characterized in that described slide bar comprises first slide bar and second slide bar, and described slide block offers first attachment hole and second attachment hole; First slide bar passes first attachment hole and spacing connection of slide block one end face, and second slide bar passes second attachment hole and is connected with the slide block other end is spacing.
5. as booster flow-limiting valve as described in the claim 4, the other end that it is characterized in that described first slide bar triggers structure with first tension that slide block moves and is connected, and the other end of described first tension triggering structure is fixed; The other end of described second slide bar is connected with second damping device that slide block moves.
6. as booster flow-limiting valve as described in the claim 5, it is characterized in that described first tension trigger structure comprise is connected with the slide bar end be subjected to the pulling force piece that ruptures, fixed by the other end of pulling force fracture piece, the described radial cross section area that is subjected to pulling force fracture piece is less than slide bar end radial cross section area, describedly is subjected to be arranged with pressure-bearing on the pulling force fracture piece and strengthens sleeve.
7. as booster flow-limiting valve as described in the claim 4, it is characterized in that described first slide bar comprises and the guide section of the slip of the first attachment hole Spielpassung of slide block that slide block moves spacing section, slide block moves between spacing section and the guide section has limited step; Described second slide bar comprises and the guide section of the slip of the second attachment hole Spielpassung of slide block that slide block moves spacing section; Slide block moves between spacing section and the guide section has limited step.
8. booster flow-limiting valve according to claim 1 is characterized in that it also comprises support, and described support one end is connected with deflector, and the other end of described support is connected with the current limliting body, and described support is connected with slide block.
9. as booster flow-limiting valve as described in the claim 6, it is characterized in that the described two ends of pulling force fracture piece that are subjected to are connected with flange respectively.
10. as booster flow-limiting valve as described in the claim 6, it is characterized in that the described two ends of pulling force fracture piece that are subjected to are provided with the connection boss; Describedly be connected in the end of slide bar by a part of clamping of pulling force fracture piece, the end that described another part that is subjected to pulling force fracture piece stretches out slide bar is fixed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735806 CN203176474U (en) | 2012-12-27 | 2012-12-27 | Flow-limiting valve for exploded pipe |
| PCT/CN2013/088640 WO2014086298A1 (en) | 2012-12-06 | 2013-12-05 | Flow-limiting valve for exploded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735806 CN203176474U (en) | 2012-12-27 | 2012-12-27 | Flow-limiting valve for exploded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176474U true CN203176474U (en) | 2013-09-04 |
Family
ID=49073171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735806 Withdrawn - After Issue CN203176474U (en) | 2012-12-06 | 2012-12-27 | Flow-limiting valve for exploded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016805A (en) * | 2012-12-27 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Pipe explosion flow-limiting valve |
| WO2014086298A1 (en) * | 2012-12-06 | 2014-06-12 | 武汉大禹阀门股份有限公司 | Flow-limiting valve for exploded pipe |
-
2012
- 2012-12-27 CN CN 201220735806 patent/CN203176474U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014086298A1 (en) * | 2012-12-06 | 2014-06-12 | 武汉大禹阀门股份有限公司 | Flow-limiting valve for exploded pipe |
| CN103016805A (en) * | 2012-12-27 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Pipe explosion flow-limiting valve |
| CN103016805B (en) * | 2012-12-27 | 2014-10-01 | 武汉大禹阀门股份有限公司 | Pipe explosion flow-limiting valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203176473U (en) | Flow-limiting valve for exploded pipe | |
| CN101251203B (en) | Check valve | |
| CN203176474U (en) | Flow-limiting valve for exploded pipe | |
| CN103032615B (en) | Booster flow-limiting valve | |
| CN202768906U (en) | Water hammer eliminating combined valve | |
| CN202251173U (en) | Non-differential floating double-cylinder assembly | |
| CN103016805B (en) | Pipe explosion flow-limiting valve | |
| CN103267168B (en) | Valve buffer | |
| CN203023571U (en) | Shear type pipe burst flow limiting valve | |
| CN201236973Y (en) | Tension rod type soft-sealing single-flow valve | |
| CN203176453U (en) | Slowly-closed device for check valve | |
| CN103016804B (en) | Shear type pipe explosion flow-limiting valve | |
| CN202100821U (en) | High-performance delay-close check valve | |
| CN202266711U (en) | Flexible sealed multifunctional pump station valve | |
| CN103075570B (en) | Valve buffer | |
| CN201568065U (en) | Sequence valve for hydraulic support | |
| CN204878979U (en) | Extra -large -size reservoir atmospheric valve | |
| CN201909036U (en) | Anti-freezing valve with function of temperature control | |
| CN105179792B (en) | A kind of ultra-large type reservoir atmospheric valve | |
| CN201827172U (en) | Supercharging latching hydraulic buffer system | |
| CN103133729B (en) | Diversion damper slowly-closed check valve | |
| CN203223628U (en) | Self-reliance type adjustable valve slowly-closing device | |
| WO2014086298A1 (en) | Flow-limiting valve for exploded pipe | |
| CN204477428U (en) | A kind of manually-operated gate | |
| CN105650338A (en) | Axial flow type safety cut-off valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20141001 |
|
| RGAV | Abandon patent right to avoid regrant |